correcting for error

I have a sparfun rtk express plus kit. V 3.3

It is operating in rover mode with RTK provided by skylark.

Using Fieldgenius software.

When it achieves RTK fixed status it is off by about 3+ feet.

I have verified this by positioning it over known survey monuments. Is there any way to correct for this or could this be a defective unit?

See attached screen shots showing distance from true location of monuments to where RTK express think they are.

Thanks

David

Hi, maybe you forgot to attach the screenshots.